Chemical Product Library / Reference
Potassium persulfate
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Potassium persulfate |
|---|---|
| English synonyms | KPS;Potassium persulfate;Potassium peroxodisulfate |
| Chinese name | 过硫酸钾 |
| Chinese synonyms | KPS;过硫酸钾;过氧二硫酸钾 |
| Chemical category | Polymerization Initiators |
| CAS No. | 7727-21-1 |
| EINECS No. | 231-781-8 |
| Molecular formula | K2S2O8 |
| Molecular weight | 270.32 |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
Assay ≥99.0%; active oxygen ≥5.8%; chloride ≤0.001%; iron ≤0.001%; moisture ≤0.1%
Performance characteristics
White crystalline powder, water-soluble free-radical initiator, less hygroscopic than APS
Application scenarios
Polymerization initiator (emulsion polymerization), oxidant, etching agent